// P_3_0_01
//
// Generative Gestaltung – Creative Coding im Web
// ISBN: 978-3-87439-902-9, First Edition, Hermann Schmidt, Mainz, 2018
// Benedikt Groß, Hartmut Bohnacker, Julia Laub, Claudius Lazzeroni
// with contributions by Joey Lee and Niels Poldervaart
// Copyright 2018
//
// http://www.generative-gestaltung.de
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/**
 * changing the size and the position of a letter
 *
 * MOUSE
 * position x          : size
 * position y          : position
 * drag                : draw
 *
 * KEYS
 * a-z                 : change letter
 * ctrl                : save png
 */
'use strict';

var font = 'sans-serif';
var letter = 'A';

function setup() {
  createCanvas(windowWidth, windowHeight);
  background(255);
  fill(0);

  textFont(font);
  textAlign(CENTER, CENTER);
}

function mouseMoved() {
  clear();
  textSize((mouseX - width / 2) * 5 + 1);
  text(letter, width / 2, mouseY);
}

function mouseDragged() {
  textSize((mouseX - width / 2) * 5 + 1);
  text(letter, width / 2, mouseY);
}

function keyReleased() {
  if (keyCode == CONTROL) saveCanvas(gd.timestamp(), 'png');
}

function keyTyped() {
  letter = key;
}
